canon rumors FORUM

I had a good feeling it would be the 800mm; as stated in an earlier thread. But they better make it appealing. Not just compete on par with the Nikon version, which by the way is heavier than the current Canon 800mm.

I don't know why it would need to be priced over the Nikon version. Since it uses elements that are smaller in diameter than the 600mm IS II. Less fluorite element should mean cheaper to produce. Also less material for the barrel, etc. But, more often than not these decisions make little sense.

I always wonder who buy such lenses Of course, I would like to try it (on 1dx, which I also do not have ) From practical reasons such lenses are too much expensive as well as I do not know any other application means except for bird photography (which is not paying off).

It would be very interesting to hear from people who own such lenses the reasons why they bought them and where they use them. I am 99% sure that nobody in my country (Lithuania) has such lenses.

Paparazzi love these lenses.. check out the shots of Kate Middleton in her swimsuit on holiday in france,a lens like this was used.. and those shots earned a lot of money..

How about 800F4 with the built-in 1.4X teleconverter.... that would give you 1120mmF5.6, and probably for a reasonably priced $200,000..... After all, many years ago the 1200F5.6 sold for around $100,000, Im sure with updated materials and designs the price could double....

I'm not sure why this keeps coming up...a non-DO 400/4 will be the same diameter and a bit longer than the 200/2. It won't be 'for the masses,' unless you think 'the masses' can afford a lens that will cost well over $6,000. An 'affordable' 400mm lens will have an f/5.6 aperture, and there are two already (100-400L and 400/5.6), and hopefully we'll see updates to both soon.

Aye. Both need some serious IS attention, and some improvement in IQ would be very welcome. I'd happily get rid of my 100-400L in favor of a new 400/5.6 L IS with at least four stops of hand holdability.

Wow, this has got to be a dream lens for those that shoot birds and wildlife.

I bet neuro's already working out how to fit it into his finances...

And, why not. The technology behind a lens like this must be pretty incredible. Kudos to Canon.

Actually, the 600/4 L II + 2x TC on a FF (either 5D III or 1D X) pretty much fulfills the dream. It is astonishingly sharp even with the TC, and mind blowingly sharp without it. For those times when you need to photograph a bigger bird, and prefer not to move (which usually scares off the birds), having the ability to go shorter than 1200mm or 840mm is extremely handy.